partagenocce (partagenocce) wrote,
partagenocce
partagenocce

KDB / KGDB

[Чтото про KDB]A KDB / KGDB session on the popular Raspberry Pi embedded Linux board

Assumptions / Pre-reqs

For this post to be useful, you should:

– know how to build a Linux kernel from source

– know something about Linux kernel programming, writing kernel module code, etc

– have some familiarity with setting up and using KDB and KGDB (a bit of this is covered here, not all); also, see some useful Resources just below..

– have an R Pi (I use the Rev B R Pi) with an SD card

– have a custom Linux kernel running on it (need to be able to modify kernel configuration and rebuild at will)

– the R Pi does not have a dedicated physical serial port; we require one to get (and send) console I/O (so that we can see kernel printk’s and interact via the keyboard). I find a simple and efficient way to do this is to make use of the GPIO pins 14 (TXD) and 15 (RXD) on the board, connecting them to a simple FTDI
USBTTL serial breakout board. I’m using FTDI’s FT232R Breakout board; it works very well indeed.
Tags: компьютеры
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